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Шрек
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Процессор : SDA5255-A052 ; видео – TDA8844 , шасси : E9/a.
Как войти в сервисное меню телевизора ? Вариант “ TV – I – STOP “ не
открывает , а необходимо подправить геометрию.
Заранее благодарю. |
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VRV
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Шрек попробуй ещё раз
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Konstantin
Передовик
Сообщения: 1648
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| Шрек, название темы изменено, будь внимателен !!! |
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Шрек
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Вариант “ TV – I – STOP “ не
открывает !!!!!!!!!!! |
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VRV
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Шрек
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| Пульт родной, все функции выполняет. |
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VRV
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Странно  |
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reset
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Chassis E9-service manual
SERVICE ADJUSTMENTS OF THE COLOUR TV WITH E9 CHASSIS
All necessary adjustments and settings are performed during manufacture of TV set and assure its
correct operation when connected to the mains voltage and antenna or external video or audio signal.
When TV set requires service intervention all settings should be checked and corrected, if necessary.
DEMAGNETISING OF PICTURE TUBE
Correctness of picture tube demagnetising is usually automatically checked. Magnetisation of picture
tube is presented as one or more colour "clouds", consequently colour reproduction of the picture is
not correct.
Each time the TV set is switched on with mains switch, demagnetising system is activated. For correct
demagnetising procedure disconnect the TV set with mains switch and leave it disconnected for about
15 minutes. Afterwards when you switch on the TV, demagnetising procedure is performed. In case
distortion of colour reproduction still persists, special demagnetising coil should be used.
ADJUSTMENT ADJUSTMENT
CONDITION
ADJUSTMENT ACTIVITY
AND RESULT OF SETTINGS
1. SUPPLY VOLTAGE
FOR HORIZONTAL
OUTPT STAGE
»B+«
• Connect the TV set to
supply voltage
175…250VAC.
• Switch it on and set it by
means of remote
controller to AV mode of
operation.
• Connect DC voltmeter to
D-602 cathode.
With P-601 potentiometer set supply voltage for
horizontal output stage to:
• 90° CTV: 118V ±0,2V
• 110° CTV: 155V ±0,2V
• 110°/16:9 CTV: 155V ±0,2V
SWITCHING TO SERVICE MODE
All other service settings of TV set are made in so called service mode of TV set operation. To enter this mode of operation press
the keys in the following sequence: "TV", "I", and "STOP" in the period of 5 seconds from switching on the TV set to normal mode
of operation. When the TV set is switched over to service mode the following status line with service parameter and parameter value
appears on the screen: |
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